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Table 3 Kappa results for CKD stage classification

From: Design and evaluation of a mobile application to assist the self-monitoring of the chronic kidney disease in developing countries

Category

Kappa

Concordance Index (95.0%)

Stage 1

0.6890

0.5440

0.8339

Stage 2

0.4795

0.2962

0.6626

Stage 3

0.9706

0.9099

1.0312

Stage 4

1.0000

1.0000

1.0000

Global Kappa

0.7285

0.5979

0.8589